Lecture 10- Pterygopalatine fossa Flashcards
Roof boundary of pterygopalatine fossa
greater wing of sphenoid
Posterior border of pterygopalatine fossa
lateral pterygoid plate
Medial border of pterygopalatine fossa
palatine bone
Lateral wall boundary of pterygopalatine fossa
access to infratemporal fossa space
Anterior border of pterygopalatine fossa
maxilla
… is the main branching hub of V2 and terminal branching of maxillary artery
pterygopalatine fossa
The… ganglion from cranial nerve… is located in the pterygopalatine fossa
- pterygopalatine
- CNVII
There are… openings associated with the pterygopalatine fossa
7
The lateral opening of the pterygopalatine fossa is the…
pterygomaxillary fissue
The superior opening of the pterygopalatine fossa is the…
infraorbital fissure
The posterior wall of the pterygopalatine has these 3 openings…
- Foramen rotundum (lateral)
- Pterygoid canal
- Pharyngeal canal (medial)
The medial wall of the pterygopalatine fossa has the… foramen
sphenopalatine
The inferior opening of the pterygopalatine fossa is the…
palatien canal
The 3rd part of the… artery enters the pterygomaxillary fissure and gives off these 7 terminal branches
- maxillary
1. infraorbital a.
2. sphenopalatine a.
3. pharyngeal a.
4. pterygoid canal a.
5. Greater palatine a.
6. Lesser palatine a.
7. PSA (which comes back out of the fissure)
Venous drainage of pterygomaxillary fissure is through the … vein to the pterygoid plexus to and then will drain anteriorly to….a or will drain posteriorly to … vein which will then drain to retromandibular v. which splits anterior and posterior. Anterior branch goes to facial to common facial to … Posterior joins with posterior auricular to form …
- infraorbital v.
- facial v.
- maxillary v.
- IJV
- EJV
What nerves travel through the sphenopalatine foramen? (which is the medial wall of the pterygopalatine fossa)
- Sphenopalatine artery
- Nasopalatine nerve (V2)
- P.L. Nasal n. (V2) (superior and inferior)
The sphenopalatine artery, once it comes out the…. foramen gives off … and… branches
- sphenopalatine
- Posterior septal and Posterior lateral nasal
… is the posteriosuperior opening of ptergyopalatine fossa and… is the anterosuperior opening
foramen rotundum
inferior orbital fissure
What passes through the inferior orbital fissure of the pterygopalatine fossa
infraorbital and zygomatic nn. (V2) (which sends off zygomaticotemporal and zygomaticofacial)
The pterygoid canal connects… and… and…
foramen lacerum and pterygopalatine fossa and sphenopalatine foramen
The pterygoid canal which is a posterior opening of the pterygopalatine fossa transmits the… nerve and the… branch of… artery
- Vidian n.
- pterygoid
- Maxillary
The pharyngeal canal is a … opening of the pterygopalatine fossa and is found just superior/lateral to … which is also … to pterygoid canal
- posterior
- alae of vomer bone
- 1 cm ant/med to pterygoid canal
The pharyngeal canal transmits the… nerve and the… branch of … artery
- pharyngeal n. (V2)
- pharyngeal
- maxillary
The palatine canal is the…. opening of the pterygopalatine fossa and it runs vertically just lateral to … of palatine bone
- inferior
- perpendicular plate
The palatine canal transmits the… nn. and … artery
- greater and lesser palatine nn.
- descending artery (greater and lesser palatine aa.)
The lesser palatine nerve and artery are found on the…
pyramidal process of the palatine bone
The pterygopalatine ganglion from…. is attached to… by 2 short pterygopalatine nerves
CNVII
V2
